1121110021222 has 4 divisors (see below), whose sum is σ = 1681665031836. Its totient is φ = 560555010610.

The previous prime is 1121110021211. The next prime is 1121110021223. The reversal of 1121110021222 is 2221200111211.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1121110021196 and 1121110021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121110021223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280277505304 + ... + 280277505307.

It is an arithmetic number, because the mean of its divisors is an integer number (420416257959).

Almost surely, 2^{1121110021222} is an apocalyptic number.

1121110021222 is a deficient number, since it is larger than the sum of its proper divisors (560555010614).

1121110021222 is an equidigital number, since it uses as much as digits as its factorization.

1121110021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560555010613.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1121110021222 its reverse (2221200111211), we get a palindrome (3342310132433).

The spelling of 1121110021222 in words is "one trillion, one hundred twenty-one billion, one hundred ten million, twenty-one thousand, two hundred twenty-two".